20872290

20,872,290 is an even composite number composed of four prime numbers multiplied together.

What does the number 20872290 look like?

This visualization shows the relationship between its 4 prime factors (large circles) and 16 divisors.

20872290 is an even composite number. It is composed of four distinct prime numbers multiplied together. It has a total of sixteen divisors.

Prime factorization of 20872290:

2 × 3 × 5 × 695743

See below for interesting mathematical facts about the number 20872290 from the Numbermatics database.

Names of 20872290

Cardinal: 20872290 can be written as Twenty million, eight hundred seventy-two thousand, two hundred ninety.

Scientific notation

Scientific notation: 2.087229 × 10⁷

Factors of 20872290

Number of distinct prime factors ω(n): 4
Total number of prime factors Ω(n): 4
Sum of prime factors: 695753

Divisors of 20872290

Number of divisors d(n): 16
Complete list of divisors:
1 2 3 5 6 10 15 30 695743 1391486 2087229 3478715 4174458 6957430 10436145 20872290
Sum of all divisors σ(n): 50093568
Sum of proper divisors (its aliquot sum) s(n): 29221278
20872290 is an abundant number, because the sum of its proper divisors (29221278) is greater than itself. Its abundance is 8348988

Bases of 20872290

Binary: 1001111100111110001100010₂
Hexadecimal: 0x13E7C62
Base-36: CFD5U

Squares and roots of 20872290

20872290 squared (20872290²) is 435652489844100
20872290 cubed (20872290³) is 9093065107248109989000
The square root of 20872290 is 4568.6201417933
The cube root of 20872290 is 275.3320067215

Scales and comparisons

How big is 20872290?

20,872,290 seconds is equal to 34 weeks, 3 days, 13 hours, 51 minutes, 30 seconds.
To count from 1 to 20,872,290 would take you about fifty-one weeks!

This is a very rough estimate, based on a speaking rate of half a second every third order of magnitude. If you speak quickly, you could probably say any randomly-chosen number between one and a thousand in around half a second. Very big numbers obviously take longer to say, so we add half a second for every extra x1000. (We do not count involuntary pauses, bathroom breaks or the necessity of sleep in our calculation!)
A cube with a volume of 20872290 cubic inches would be around 22.9 feet tall.

Recreational maths with 20872290

20872290 backwards is 09227802
20872290 is a Harshad number.
The number of decimal digits it has is: 8
The sum of 20872290's digits is 30
More coming soon!

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The information we have on file for 20872290 includes mathematical data and numerical statistics calculated using standard algorithms and methods. We are adding more all the time. If there are any features you would like to see, please contact us. Information provided for educational use, intellectual curiosity and fun!

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